Howdo I get Uninstall file for Explorer Beta 2?

Last week I posted a question to this forum regarding the trouble I was having uninstalling Explorer Beta 2 (you can't install Beta 3 until you UNINSTALL beta 2). I got some very good suggestions -- system restore, trying REinstalling beta 2, etc. but none of them worked. Beta 2 won't reinstall unless you uninstall, restoring back to earlier times resurrected other demons and glitches I had solved, etc.

What I believed happened is part of my overzealous file maintenance. I usually delete all those windows update Uninstall files that clutter up the Windows directory. Who knew that one of them was probably the uninstall file for Explorer Beta 2?

Where can a get (or would someone be so kind to attach to their reply) the following uninstall file?

$NtUninstallie7beta2$\spuninst\spuninst.exe

I'd like to copy it to my windows directory, run the program, and see if Beta 2 uninstalls.

Oh well. If Explorer crashes, I've still got Firefox!

Thanks.